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java.lang.Object com.metamatrix.query.sql.lang.Criteria com.metamatrix.query.sql.lang.PredicateCriteria com.metamatrix.query.sql.lang.AbstractSetCriteria com.metamatrix.query.sql.lang.DependentSetCriteria
public class DependentSetCriteria
The DependentSetCriteria is missing the value set until it is filled during processing. This allows a criteria to contain a dynamic set of values provided by a separate processing node.
Constructor Summary | |
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DependentSetCriteria(Expression expr)
Construct with the left expression |
Method Summary | |
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void |
acceptVisitor(LanguageVisitor visitor)
Method for accepting a visitor. |
java.lang.Object |
clone()
Deep copy of object. |
boolean |
equals(java.lang.Object obj)
Override equals() method. |
Expression |
getValueExpression()
Get the independent value expression |
ValueIterator |
getValueIterator()
Returns a ValueIterator to obtain the values in this IN criteria's value set. |
ValueIteratorSource |
getValueIteratorSource()
Get the valute iterator source, which will provide the iterator when it is ready during processing. |
int |
hashCode()
Get hash code. |
void |
setValueExpression(Expression valueExpression)
Set the independent value expression |
void |
setValueIterator(ValueIterator valueIterator)
This method is not supported for DependentSetCriteria as it will obtain it's value iterators for the ValueIteratorSource. |
void |
setValueIteratorSource(ValueIteratorSource valueIteratorSource)
Set the value iterator source, which will provide value iterators during processing. |
Methods inherited from class com.metamatrix.query.sql.lang.AbstractSetCriteria |
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getExpression, isNegated, setExpression, setNegated |
Methods inherited from class com.metamatrix.query.sql.lang.Criteria |
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combineCriteria, combineCriteria, combineCriteria, separateCriteriaByAnd, toConjunctiveNormalForm, toDisjunctiveNormalForm, toString |
Methods inherited from class java.lang.Object |
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finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public DependentSetCriteria(Expression expr)
Method Detail |
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public ValueIteratorSource getValueIteratorSource()
public void setValueIteratorSource(ValueIteratorSource valueIteratorSource)
valueIteratorSource
- The valueIteratorSource to set.public Expression getValueExpression()
public void setValueExpression(Expression valueExpression)
valueExpression
- The valueExpression to set.public ValueIterator getValueIterator()
getValueIterator
in interface ValueIteratorProvider
getValueIterator
in class AbstractSetCriteria
MetaMatrixRuntimeException
- if the subquery for this set criteria
has not yet been processed and no value iterator is availableAbstractSetCriteria.getValueIterator()
public void acceptVisitor(LanguageVisitor visitor)
LanguageObject
visitor
- Visitor being usedpublic int hashCode()
hashCode
in class java.lang.Object
public boolean equals(java.lang.Object obj)
equals
in class java.lang.Object
obj
- Other object
public java.lang.Object clone()
clone
in interface LanguageObject
clone
in class AbstractSetCriteria
public void setValueIterator(ValueIterator valueIterator)
setValueIterator
in interface ValueIteratorProvider
setValueIterator
in class AbstractSetCriteria
valueIterator
- an instance of ValueIterator to be set
on this ValueIterator provider (as in the case of subquery
containers whose results are provided externally).
java.lang.UnsupportedOperationException
- AlwaysAbstractSetCriteria.setValueIterator(com.metamatrix.query.sql.util.ValueIterator)
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